Electronic switching telephone system



Aug. 2, 1960 B.-BRIGHTMAN EIAL 2,947,819

ELECTRONIC SWITCHING TELEPHONE SYSTEM Filed March 13, 1958 34 Sheets-Sheet 1 LOCAL OFFICE LONG LONG LONG I I DISTANCE DISTANCE x DISTANCE I I swn'cmus SWITCHING SWITCHING CENTER CENTER CENTER v v v A M [K M LOCAL LOCAL LOCAL OFFICE OFFICE #7 OFFICE V V A LOCAL LOCAL 4 OFFICE OFFICE INVENTORS. BARRIE BRIGHTMAN JAMES GORDON PEARCE BY MATTHEW RTUBINIS k I Arrqgugv Aug. 2, 1960 B. BRIGHTMAN EI'AL 2,947,819

ELECTRONIC SWITCHING TELEPHONE SYSTEM Filed March 13, 1958 34 Sheets-Sheet 2 JLI.

HIGHWAY I MONITOR FIGS. l3-l7 I w G P P W m T T EAT. xN s EE m LG R F P E fix T L 8 Unu 2 MP RECEIVE SELECTOR FIG- 20 CALLING UNIT FINDER CIRCUIT FIG. l9

XIG

LINE TERMINATING UNIT FIG. I8

CONTROL COUNTER TCAI I TCBI I STI RAI I SCAN CIRCUIT M4 TCBZ I s1'2 R2 'RA2 I SEIZE 8| RELEASE FIGS. ll GIZ RECEIVE Aug. 2, 1960 B. BRIGHTMAN ETAL 2,947,819

ELECTRONIC SWITCHING TELEPHONE SYSTEM- Filed March 13, 1958 34 Sheets-Sheet 3 HIGHWAY 2 MONITOR BS LONG DISTANCE I SWITCHING CENTER I ATTENDANT'S POSITION ATTENDANT'S LINK CIRCUIT INCOMING ATTENDANT'S REGISTER KEY-GENDER FIGS. 26-33 REGISTER I I I I I I I I I I I I I I I I I I I I I I I IIIZ REGISTER INCOMING REGISTER ALLOTTER JP Z FIG. 2|

CHANNEL ALLOTTER FIGS. 23-25 TO DISTANT OFFICE Aug. 2, 1960 B. BRIGHTMAN ETAL 2,947,819

ELECTRONIC SWITCHING TELEPHONE SYSTEM Filed March 13, 1958 34 Sheets-Sheet 4 LINE TERMINATING UNIT RECEIVE GATES HIGHWAY NO.I

CALLING CALLED RECEIVE HIGHWAY NO-Z CALLING CALLED v SIGNAL FREQUENCIES Aug. 2, 1960 B. BRIGHTMAN ET AL 2,947,819

ELECTRONIC SWITCHING TELEPHONE SYSTEM Filed March 13., 1958 34 Sheets-Sheet 5 LINE TERMINATING UNIT W" HIGHWAY N0.I

HIGHwAY No.2

ssuo GATES HIGHWAY NO.|

J CALLING CALLED +I2 +IZO-0 HIGHWAY No.2

I CALLING 504 CALLED Aug. 2, 1960 B. BRIGHTMAN ET AL 2,947,319

ELECTRONIC SWITCHING TELEPHONE SYSTEM Filed March 15, 1958 54 Sheets-Sheet 6 L\NE TERMINATING UNIT 2 3.6

RELEASE INC.CALL com.

Aug. 2, 1960 B. BRIGHTMAN ETAL 2,947,819

ELECTRONIC swrrcnmc TELEPHONE SYSTEM :54 Sheets-Sheet '7 Filed March 13, 1958 LINE TERMINATING UNIT I H aiWAY N O .l SELECTOR TIME POSITION! STORE Aug. 2, 1960 B. BRIGHTMAN ET AL 7,

ELECTRONIC SWITCHING TELEPHONE SYSTEM Filed March 13, 1958 34 Sheets-Sheet 8 LINE TERMINATING UNIT IHIGHWAY No.2 SELECTOR -|2 I CALLING l BOI I I l J f T HWI HWBB o j |=|e.z4

| TPP To I PULSE TPMI TIME POSITION I0 TPBB To TPIl/l no FIG. 24

l l l STORE I l l Aug. 2, 1960 B. BRIGHTMAN ETAL 2,947,819

ELECTRONIC SWITCHING TELEPHONE SYSTEM Filed March 13, 1958 4 Sheets-Sheet 11 TO FIG.4 SEIZE a RELEASE o o F .11 SCAN CIRCUIT 3 5 U H07 0- Us! use IO STG IO as l0 -1 RG Ky RAG I0 Aug. 2, 1960 B. BRIGHTMAN ETAL ELECTRONIC SWITCHING TELEPHONE SYSTEM 34 Sheets-Sheet 13 Filed March 13, 1958 HIGHWAY l MONITOR CCT. 24

M.F. RECEIVER o TPI PULSE TPP TP IO GEN.

TPRO-IO To ATTENDANT LRI LINK cc T s.

Aug. 2, 1960 B. BRIGHTMAN ETAL 7,

ELECTRONIC SWITCHING TELEPHONE sys'ram Filed March 13, 1958 54 Sheets-Sheet 14 HIGHWAYI MONITOR CCT. 24 f {7.14

TP l

TP IO ARIO Aug. 2, 1960 B. BRIGHTMAN ET AL 2,947,819

macmomc SWITCHING TELEPHONE SYSTEM 54 Sheets-Sheet 15 Filed March 15, 1958 HIGHWAY MONITOR CCT. 24

ip-mlo FISIS ESET TPI

TP IO CD. RIO

Aug. 2, 1960 B. BRIGHTMAN ET AL 2,947,819

ELECTRONIC SWITCHING TELEPHONE SYSTEM Filed March 13, 1958 34 Sheets-Sheet 16 HIGHWAY I MONITOR OCT. 24

Aug. 2, 1960 B. BRIGHTMAN ET AL 2,947,819

ELECTRONIC SWITCHING TELEPHONE SYSTEM 34 Sheets-Sheet 17 Filed March 15 1958 HIGHWAY l MONITOR CCT. 24

8 O m m H M. P W I r. F R W mm T P CM 6 7 TE 0 ll ET W N w z I R J 9 M o o m m A N w 2 n w Y TA W W 2 R Q q l V E H N E E M R U 5 m 7 I M Z 3 a n 0 W I 3 En m E u A T G A "G .K C H .A R QU TO F I625- 'TP RIO Aug. 2, 1960 B. BRIGHTMAN ET AL 2, 47,

ELECTRONIC SWITCHING TELEPHONE SYSTEM Filed March 15, 1958 34 Sheets-Sheet 18 CONTROL COUNTER l5 RESET 20 KC TRIGGER Aug. 2, 1960 B. BRIGHTMAN ET AL ELECTRONIC SWITCHING TELEPHONE SYSTEM Filed March 15, 1958 34 Sheets-Sheet 19 ELECTRONIC SWITCHING TELEPHONE SYSTEM Filed March 15, 1958 34 Sheets-Sheet 20 ROUTE SELECTOR I? f .20

INH

TO FIG. 9

TO IG. IO

U I l 2004 2002 200 TO FIG. 26

TO FIGS. 23 a 30 TO FIGS.

SECOND 

